Electrode holder



May 937. H. P. SANDERS 2,080,791

ELECTRODE HOLDER Filed Nov. 5, 1936 INVENTOR, M4 F. 5M4

Bmxf 731N11 ATTORNEYS.

Patented May 181 1937 UNITED STATES PATENT OFFICE Harold P. Sanders, ElPaso, Tex. Application November 5, 1936, Serial No. 109,256

3 Claims.

The present invention relates to holders for welding electrodes, and hasfor its principal ob- Ject the provision of cooling means in the holderwhereby the heat incident to welding is trans- 5 mitted away from theholder with sufllcient ra pidity to prevent overheating thereof.

Another object is to provide cooling means of such form as not tointerfere with the convenient use of the holder in welding operations.Other objects and advantages of the invention will become apparent fromthe following description, which should be read with the understandingthat changes, within the limits of the claims hereto appended, may bemade in the form, construction and arrangement of the several parts,without departing from the spirit of the invention as defined in saidclaims.

A preferred embodiment of the invention is illustrated in theaccompanying drawing, in

which Fig. 1 is a longitudinal part sectional elevation of the completedevice.

Fig. 2 is a longitudinal section taken in a plane at right angles to theplane of Fig. 1.

the respective lines 3-! and 4-4 of-Eig. 1, Fig. 3 being enlarged.

In the drawing, the reference numeral 5 designates an elongated hollowbody, having preferably a rectangular cross section for the greaterportion of its length. The electrode (not shown) may be removablysecured at the end of the body 5 in any desired manner, as for example,by a clamp 6, pivotally connected with said body at l, and provided witha suitable insulated handle 8. A spring 9 keeps the clamp in theposition shown, the electrode being gripped in notches ll between theends of the clamp and the body.

The body 5 has a flange il, beyond which is a in said slots asshown at22 in Fig. 4. The outerends of said tubes are slightly oifs'et, as shownin Figs. 1 and 2. to lie adjacent to one side of the cable I, and areadapted for connection with 66 hoses, not shown. which may, if desired,be fas- Figs. 3 and '4 are transverse sections taken on tened to saidcable. One tube, It, extends the full length of the body 5, andterminates in an near said open end, into the interior cavity of Y thebody 5 in the hottest region near the electrode. The cooling fluid thenflows back through the body and escapes through the tube 20. The

plug I6, the solder i 5 at the cable connection, and the welds 22 aroundthe tubes i9 and 20 effectively seal the body against leakage of fluid.The arrangement of the tubes insures proper circulation of the coolingfluid, introducing it at one end 01 the. body and causing it to flow theentire length thereof before escaping.

I claim:

1. An electrode holder comprising a tubular body of electricalconducting material having a closed end, means for removably holding anelectrode in electrical contact with said body near said closed end, anelectrical conductor inserted into the other end of said body, saidconductor closing said other end and having electrical contacttherewith, and a pair of pipes entering said body near said conductorand terminating at longitudinally spaced regions in the interior of saidbody, said pipes providing means for introducing cooling fluid into saidinterior and discharging it therefrom.

2. An electrode holder comprising a tubular body of electricalconducting material having a closed end, means for removably holding anelectrode in electrical contact with said body near said closed end, anelectrical conductor inserted into the other end of said body, saidconductor closing said other end and having electrical contacttherewith, a pair of pipes entering said body through its side walladjacent to said conductor contact, the'outer end portions of said pipesbeing bent to lie parallel with said conductor and their inner endsterminating at different regions in the interior of said body, saidpipes providing means for circulating cooling fluid through saidinterior, and an insulating handle surrounding the; connections betweensaid body and said conductor and pipes.

3. An electrode holder comprising a tubular body of electricalconducting material having a closed end, means for removably holding anelectrode in electrical contact with said body near said closed end, anelectrical conductor inserted terior of said body, another fluidconnection lead ing from said body near said conductor for dischargingsaid cooling fluid, and an insulating handle surrounding said body, saidhandle also surrounding said fluid discharge connection.

HAROLD P. SANDERS.

